
Quoting
cbg
No, she cannot be emancipated and she cannot move in with you and your family. Not until she is 18.
NY does not have a statute for the emancipation of a minor. NY will, if the minor is already with the permission (express or explicit) of her parents living ON HER OWN (not with her boyfriend's family) and SUPPORTING HERSELF (not being supported by another family) occasionally recognize a minor as emancipation, but there is no statute by which she can go to court and come out emancipated. Nor will any state, even the ones who do have such statutes, emancipate a minor because they do not like the way their parents are treating them. Emancipation is not and never was intended to be a means for a minor to move out; it was and is intended to be a means by which a minor who is ALREADY living on their own for reasons beyond their control, can obtain legal protections.
If the "not being allowed to eat" story is actual fact and not teenage exaggeration of "he's not letting me eat what I want to eat and instead is making me eat what the rest of the family eats", she can call CPS. But rest assured, even if CPS finds it necessary to remove her from the home, she will NOT be emancipated and she will NOT be allowed to live with you/your parents. She will be placed with other relatives, in foster care, or in a group home, but she will NOT be living with you.
When she is 18, she can live anywhere she wants. Until then, she lives where her parents say she lives.